Kassy is a distinctive girls' name in United States, ranking #4477 in 2000 with 27 recorded births. This places Kassy in the top 25% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 1997 with 29 births ranking #3854. In 2000, approximately 1 in every 67,258 girls born was named Kassy. STABLE Recent data shows the name is currently stable.